Introduction to Photonics | Session 1 | Problem Solving | NPTEL

Am I audible to you? Yeah, let's let me share the screen.

My screen is visible.

I hope you can see my screen. the PowerPoint slides. So yeah, so we'll start today's live session. This is the first live session because of some issues and um some interruptions. We couldn't continue on the Saturday and today we are uh here for the live session one. So uh here we uh if you have any

discussion you want to do we can also discuss about that along with that I hope that you have already finished the first live uh first uh uh week all the classes. There were three lectures from professor and one the practical lesson and uh um there was uh one week one assignment also along with that. So

today we are going to discuss about some basic numerical uh problems. Not only numerical but also the um um technical or we can say that some um uh fundamental problems we we are going to discuss here. After that we'll move uh next. If you have any doubts we can discuss about that. So let me check recording is going on or

not. Yeah. So it's fine now. It's working. And I hope that you you can see my slides clearly. Let's move to the slide questions uh question answer session first slide. Yeah. So the question first question is which of the following characterizes the ray nature of light? Uh as you know that we have already discussed about the

professor has already discussed about all the characterist characteristic nature of the ray uh uh the uh photons or light in ray uh uh um uh ray nature. And then um he has discussed also about the uh electromagnetic wave nature and uh wave nature and then electromagnetic radiation and then last one is a quantum